Photographers often look up to capture an amazing aspect of our world. The sky can be a compelling subject or backdrop in a photograph, emanating many sources of light. Here is a collection of images depicting upward phenomena around the globe. [44 photos total]

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A commercial jetliner begins it's final approach to O'Hare International Airport as Mammatus clouds form over Wrigley Field during the fifth inning of a baseball game between the Chicago Cubs and the Los Angeles Dodgers Monday, June 22, in Chicago.
(Charles Rex Arbogast/Associated Press)
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"Sky Mirror" a 2006 stainless steel monumental artwork by British contemporary artist of Indian origin Anish Kapoor, is displayed in the gardens of the Chateau de Versailles, in Versailles on June 5, as part of "Kapoor Versailles", an exhibition of Kapoor's work that runs through November 1, 2015.
(STEPHANE DE SAKUTIN/AFP/Getty Images)
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The storm clouds in the area provided a colorful backdrop as the Red Sox hosted the Baltimore Orioles in a regular season MLB baseball game at Fenway Park in Boston on June 23..
(Jim Davis/Globe Staff)
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The Aurora Borealis, also known as the Northern Lights, begin to flare up with green, yellow and pink hues near the Vedauwoo Recreation Area on June 23 between Cheyenne and Laramie, Wyo. The Northern Lights are created as a result of collisions between gaseous particles in the Earth's atmosphere and charged particles released by the sun, according to the Northern Lights Space and Science Centre in Canada. Variations in color are due to the type of gas particles that are colliding.
(Blaine McCartney/Wyoming Tribune Eagle via AP)
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The Milky Way shines in the sky over El Roque beach in Fuerteventura, Canary Islands, Spain, May 18. The night sky of Fuerteventura has become the third Starlight reserve of the Canary Islands.
(CARLOS DE SAA/EPA)
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A general view showing the art installation 'Alley of Flying Umbrellas' in central St. Petersburg, Russia, May 15. Art installation inspired by 'Umbrella Sky Project' of Portuguese town of Agueda and was made of 500 colored umbrellas.
(ANATOLY MALTSEV/EPA)
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Lightning strikes during a thunderstorm on July 7 in Las Vegas, Nevada. The monsoon storm dropped heavy rain and hail in parts of the valley causing street flooding and power outages.
(Ethan Miller/Getty Images)
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A man takes photos to solar halo in Mexico City, May 21. According to meteorologists, the weather phenomenon creates rainbows around the sun and is formed by the reflection of ice crystals.
(EDGARD GARRIDO/Reuters)
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A strong lightning lights up the night sky during a thunderstorm above a residential area in Sieversdorf Brandenburg, Germany, July 7. After the hot summer days heavy thunderstorms are often experienced over Brandenburg at night.
(PATRICK PLEUL/EPA)
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A rainbow is seen in the sky behind LGBT pride flags and the U.S. flag in West Hollywood, Calif. June 26. The U.S. Supreme Court ruled that the U.S. Constitution provides same-sex couples the right to marry.
(Lucy Nicholson/Reuters)
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A member of the Samaritan community is silhouetted against the sky as they pray atop Mount Gerizim at sunrise, above the city of Nablus, West Bank, June 28, as they celebrate the Shavuot festival.
(ALAA BADARNEH/EPA)
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A street performer dressed as a leprechaun is silhouetted against the sky as he leaps into the air during his performance along "Rock Street" on the final day of the Rock in Rio USA concert in Las Vegas, Nevada May 16.
(L.E. BASKOW/Reuters)
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A kite is silhouetted against the sun as Balinese fly their traditional kites during the Bali Kite Festival in Sanur, Bali, Indonesia, July 3. The major colors of the Balinese kites are black, red, white, and gold/yellow which represent the incarnations of the Hindu deities. The festival organized to promote tourism in Bali.
(MADE NAGI/EPA)
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A girl stands with a background of dark moonsoon rainclouds looming in the sky before heavy rains in Calcutta, India, on April 28. The summer monsoon season in India usually begins in the months of June and July and lasts until October.
(PIYAL ADHIKARY/EPA)
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A Malaysian Islamic religious officer looks at a telescope to determine the sighting of the new moon to mark the start of the fasting month of Ramadan in Putrajaya, outside Kuala Lumpur, Malaysia, June 16.
(FAZRY ISMAIL)
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A lightning strikes during a heavy storm over Poznan in the night of July 7. Severe storms passed last night over Poland causing lots of damages to buildings, trees, electricity and railway tractions.
(LUKASZ OGRODOWCZYK/EPA)
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Children dance and play as the setting sun illuminates the sky shortly before the start of a showing of "Despicable Me 2" in the first of a series of Movies Under the Stars behind Flint City Hall in Flint, Mich., on June 26.
(Christian Randolph/The Flint Journal-MLive.com via AP)
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